(1)(a) The child support guideline amount as determined by this section presumptively establishes the amount the trier of fact must order as child support for a minor child, or a child who is dependent in fact and between the ages of 18 and 19 and who is still in high school and is performing in good faith with a reasonable expectation of graduation before he or she reaches the age of 19, in an initial proceeding for such support or in a proceeding for modification of an existing order for such support, whether the proceeding arises under this or another chapter. The trier of fact may order payment of child support which varies, plus or minus 5 percent, from the guideline amount, after considering all relevant factors, including the needs of the child or children, age, station in life, standard of living, and the financial status and ability of each parent. The trier of fact may order payment of child support in an amount which varies more than 5 percent from such guideline amount only upon a written finding explaining why ordering payment of such guideline amount would be unjust or inappropriate. Notwithstanding the variance limitations of this section, the trier of fact must order payment of child support which varies from the guideline amount as provided in paragraph (11)(b) whenever any of the children are required by court order or mediation agreement to spend a substantial amount of time with either parent. This requirement applies to any living arrangement, whether temporary or permanent.

Terms Used In Florida Statutes 61.30

  • Affidavit: A written statement of facts confirmed by the oath of the party making it, before a notary or officer having authority to administer oaths.
  • Annuity: A periodic (usually annual) payment of a fixed sum of money for either the life of the recipient or for a fixed number of years. A series of payments under a contract from an insurance company, a trust company, or an individual. Annuity payments are made at regular intervals over a period of more than one full year.
  • Answer: The formal written statement by a defendant responding to a civil complaint and setting forth the grounds for defense.
  • Assets: (1) The property comprising the estate of a deceased person, or (2) the property in a trust account.
  • Clerk of court: An officer appointed by the court to work with the chief judge in overseeing the court's administration, especially to assist in managing the flow of cases through the court and to maintain court records.
  • Department: means the Department of Revenue. See Florida Statutes 61.046
  • Dependent: A person dependent for support upon another.
  • Equitable: Pertaining to civil suits in "equity" rather than in "law." In English legal history, the courts of "law" could order the payment of damages and could afford no other remedy. See damages. A separate court of "equity" could order someone to do something or to cease to do something. See, e.g., injunction. In American jurisprudence, the federal courts have both legal and equitable power, but the distinction is still an important one. For example, a trial by jury is normally available in "law" cases but not in "equity" cases. Source: U.S. Courts
  • Evidence: Information presented in testimony or in documents that is used to persuade the fact finder (judge or jury) to decide the case for one side or the other.
  • Health insurance: means coverage under a fee-for-service arrangement, health maintenance organization, or preferred provider organization, and other types of coverage available to either parent, under which medical services could be provided to a dependent child. See Florida Statutes 61.046
  • Income: means any form of payment to an individual, regardless of source, including, but not limited to: wages, salary, commissions and bonuses, compensation as an independent contractor, worker's compensation, disability benefits, annuity and retirement benefits, pensions, dividends, interest, royalties, trusts, and any other payments, made by any person, private entity, federal or state government, or any unit of local government. See Florida Statutes 61.046
  • Liabilities: The aggregate of all debts and other legal obligations of a particular person or legal entity.
  • minor: includes any person who has not attained the age of 18 years. See Florida Statutes 1.01
  • Obligation: An order placed, contract awarded, service received, or similar transaction during a given period that will require payments during the same or a future period.
  • Obligee: means the person to whom payments are made pursuant to an order establishing, enforcing, or modifying an obligation for alimony, for child support, or for alimony and child support. See Florida Statutes 61.046
  • Obligor: means a person responsible for making payments pursuant to an order establishing, enforcing, or modifying an obligation for alimony, for child support, or for alimony and child support. See Florida Statutes 61.046
  • Parenting plan: means a document created to govern the relationship between the parents relating to decisions that must be made regarding the minor child and must contain a time-sharing schedule for the parents and child. See Florida Statutes 61.046
  • Partnership: A voluntary contract between two or more persons to pool some or all of their assets into a business, with the agreement that there will be a proportional sharing of profits and losses.
  • person: includes individuals, children, firms, associations, joint adventures, partnerships, estates, trusts, business trusts, syndicates, fiduciaries, corporations, and all other groups or combinations. See Florida Statutes 1.01
  • Support order: means a judgment, decree, or order, whether temporary or final, issued by a court of competent jurisdiction or administrative agency for the support and maintenance of a child which provides for monetary support, health care, arrearages, or past support. See Florida Statutes 61.046
  • Time-sharing schedule: means a timetable that must be included in the parenting plan that specifies the time, including overnights and holidays, that a minor child will spend with each parent. See Florida Statutes 61.046
  • Trial: A hearing that takes place when the defendant pleads "not guilty" and witnesses are required to come to court to give evidence.
(b) The guidelines may provide the basis for proving a substantial change in circumstances upon which a modification of an existing order may be granted. However, the difference between the existing monthly obligation and the amount provided for under the guidelines shall be at least 15 percent or $50, whichever amount is greater, before the court may find that the guidelines provide a substantial change in circumstances.
(c) For each support order reviewed by the department as required by s. 409.2564(11), if the amount of the child support award under the order differs by at least 10 percent but not less than $25 from the amount that would be awarded under this section, the department shall seek to have the order modified and any modification shall be made without a requirement for proof or showing of a change in circumstances.
(2) Income shall be determined on a monthly basis for each parent as follows:

(a) Gross income shall include, but is not limited to, the following:

1. Salary or wages.
2. Bonuses, commissions, allowances, overtime, tips, and other similar payments.
3. Business income from sources such as self-employment, partnership, close corporations, and independent contracts. “Business income” means gross receipts minus ordinary and necessary expenses required to produce income.
4. Disability benefits.
5. All workers’ compensation benefits and settlements.
6. Reemployment assistance or unemployment compensation.
7. Pension, retirement, or annuity payments.
8. Social security benefits.
9. Spousal support received from a previous marriage or court ordered in the marriage before the court.
10. Interest and dividends.
11. Rental income, which is gross receipts minus ordinary and necessary expenses required to produce the income.
12. Income from royalties, trusts, or estates.
13. Reimbursed expenses or in kind payments to the extent that they reduce living expenses.
14. Gains derived from dealings in property, unless the gain is nonrecurring.
(b) Monthly income shall be imputed to an unemployed or underemployed parent if such unemployment or underemployment is found by the court to be voluntary on that parent’s part, absent a finding of fact by the court of physical or mental incapacity or other circumstances over which the parent has no control. In the event of such voluntary unemployment or underemployment, the employment potential and probable earnings level of the parent shall be determined based upon his or her recent work history, occupational qualifications, and prevailing earnings level in the community if such information is available. If the information concerning a parent’s income is unavailable, a parent fails to participate in a child support proceeding, or a parent fails to supply adequate financial information in a child support proceeding, income shall be automatically imputed to the parent and there is a rebuttable presumption that the parent has income equivalent to the median income of year-round full-time workers as derived from current population reports or replacement reports published by the United States Bureau of the Census. However, the court may refuse to impute income to a parent if the court finds it necessary for that parent to stay home with the child who is the subject of a child support calculation or as set forth below:

1. In order for the court to impute income at an amount other than the median income of year-round full-time workers as derived from current population reports or replacement reports published by the United States Bureau of the Census, the court must make specific findings of fact consistent with the requirements of this paragraph. The party seeking to impute income has the burden to present competent, substantial evidence that:

a. The unemployment or underemployment is voluntary; and
b. Identifies the amount and source of the imputed income, through evidence of income from available employment for which the party is suitably qualified by education, experience, current licensure, or geographic location, with due consideration being given to the parties’ time-sharing schedule and their historical exercise of the time-sharing provided in the parenting plan or relevant order.
2. Except as set forth in subparagraph 1., income may not be imputed based upon:

a. Income records that are more than 5 years old at the time of the hearing or trial at which imputation is sought; or
b. Income at a level that a party has never earned in the past, unless recently degreed, licensed, certified, relicensed, or recertified and thus qualified for, subject to geographic location, with due consideration of the parties’ existing time-sharing schedule and their historical exercise of the time-sharing provided in the parenting plan or relevant order.
(c) Incarceration may not be treated as voluntary unemployment in establishing or modifying a support order. However, the court may deviate from the child support guideline amount as provided in paragraph (1)(a).
(d) Social security benefits received by a minor child due to the retirement or disability of the child’s parent shall be included in the parent’s gross income.
(e) Public assistance as defined in s. 409.2554 shall be excluded from gross income.
(3) Net income is obtained by subtracting allowable deductions from gross income. Allowable deductions shall include:

(a) Federal, state, and local income tax deductions, adjusted for actual filing status and allowable dependents and income tax liabilities.
(b) Federal insurance contributions or self-employment tax.
(c) Mandatory union dues.
(d) Mandatory retirement payments.
(e) Health insurance payments, excluding payments for coverage of the minor child.
(f) Court-ordered support for other children which is actually paid.
(g) Spousal support paid pursuant to a court order from a previous marriage or the marriage before the court.
(4) Net income for each parent shall be computed by subtracting allowable deductions from gross income.
(5) Net income for each parent shall be added together for a combined net income.
(6) The following guidelines schedule shall be applied to the combined net income to determine the minimum child support need:

Combined
Monthly Net Child or Children
Income One Two Three Four Five Six
800.00 190 211 213 216 218 220
850.00 202 257 259 262 265 268
900.00 213 302 305 309 312 315
950.00 224 347 351 355 359 363
1000.00 235 365 397 402 406 410
1050.00 246 382 443 448 453 458
1100.00 258 400 489 495 500 505
1150.00 269 417 522 541 547 553
1200.00 280 435 544 588 594 600
1250.00 290 451 565 634 641 648
1300.00 300 467 584 659 688 695
1350.00 310 482 603 681 735 743
1400.00 320 498 623 702 765 790
1450.00 330 513 642 724 789 838
1500.00 340 529 662 746 813 869
1550.00 350 544 681 768 836 895
1600.00 360 560 701 790 860 920
1650.00 370 575 720 812 884 945
1700.00 380 591 740 833 907 971
1750.00 390 606 759 855 931 996
1800.00 400 622 779 877 955 1022
1850.00 410 638 798 900 979 1048
1900.00 421 654 818 923 1004 1074
1950.00 431 670 839 946 1029 1101
2000.00 442 686 859 968 1054 1128
2050.00 452 702 879 991 1079 1154
2100.00 463 718 899 1014 1104 1181
2150.00 473 734 919 1037 1129 1207
2200.00 484 751 940 1060 1154 1234
2250.00 494 767 960 1082 1179 1261
2300.00 505 783 980 1105 1204 1287
2350.00 515 799 1000 1128 1229 1314
2400.00 526 815 1020 1151 1254 1340
2450.00 536 831 1041 1174 1279 1367
2500.00 547 847 1061 1196 1304 1394
2550.00 557 864 1081 1219 1329 1420
2600.00 568 880 1101 1242 1354 1447
2650.00 578 896 1121 1265 1379 1473
2700.00 588 912 1141 1287 1403 1500
2750.00 597 927 1160 1308 1426 1524
2800.00 607 941 1178 1328 1448 1549
2850.00 616 956 1197 1349 1471 1573
2900.00 626 971 1215 1370 1494 1598
2950.00 635 986 1234 1391 1517 1622
3000.00 644 1001 1252 1412 1540 1647
3050.00 654 1016 1271 1433 1563 1671
3100.00 663 1031 1289 1453 1586 1695
3150.00 673 1045 1308 1474 1608 1720
3200.00 682 1060 1327 1495 1631 1744
3250.00 691 1075 1345 1516 1654 1769
3300.00 701 1090 1364 1537 1677 1793
3350.00 710 1105 1382 1558 1700 1818
3400.00 720 1120 1401 1579 1723 1842
3450.00 729 1135 1419 1599 1745 1867
3500.00 738 1149 1438 1620 1768 1891
3550.00 748 1164 1456 1641 1791 1915
3600.00 757 1179 1475 1662 1814 1940
3650.00 767 1194 1493 1683 1837 1964
3700.00 776 1208 1503 1702 1857 1987
3750.00 784 1221 1520 1721 1878 2009
3800.00 793 1234 1536 1740 1899 2031
3850.00 802 1248 1553 1759 1920 2053
3900.00 811 1261 1570 1778 1940 2075
3950.00 819 1275 1587 1797 1961 2097
4000.00 828 1288 1603 1816 1982 2119
4050.00 837 1302 1620 1835 2002 2141
4100.00 846 1315 1637 1854 2023 2163
4150.00 854 1329 1654 1873 2044 2185
4200.00 863 1342 1670 1892 2064 2207
4250.00 872 1355 1687 1911 2085 2229
4300.00 881 1369 1704 1930 2106 2251
4350.00 889 1382 1721 1949 2127 2273
4400.00 898 1396 1737 1968 2147 2295
4450.00 907 1409 1754 1987 2168 2317
4500.00 916 1423 1771 2006 2189 2339
4550.00 924 1436 1788 2024 2209 2361
4600.00 933 1450 1804 2043 2230 2384
4650.00 942 1463 1821 2062 2251 2406
4700.00 951 1477 1838 2081 2271 2428
4750.00 959 1490 1855 2100 2292 2450
4800.00 968 1503 1871 2119 2313 2472
4850.00 977 1517 1888 2138 2334 2494
4900.00 986 1530 1905 2157 2354 2516
4950.00 993 1542 1927 2174 2372 2535
5000.00 1000 1551 1939 2188 2387 2551
5050.00 1006 1561 1952 2202 2402 2567
5100.00 1013 1571 1964 2215 2417 2583
5150.00 1019 1580 1976 2229 2432 2599
5200.00 1025 1590 1988 2243 2447 2615
5250.00 1032 1599 2000 2256 2462 2631
5300.00 1038 1609 2012 2270 2477 2647
5350.00 1045 1619 2024 2283 2492 2663
5400.00 1051 1628 2037 2297 2507 2679
5450.00 1057 1638 2049 2311 2522 2695
5500.00 1064 1647 2061 2324 2537 2711
5550.00 1070 1657 2073 2338 2552 2727
5600.00 1077 1667 2085 2352 2567 2743
5650.00 1083 1676 2097 2365 2582 2759
5700.00 1089 1686 2109 2379 2597 2775
5750.00 1096 1695 2122 2393 2612 2791
5800.00 1102 1705 2134 2406 2627 2807
5850.00 1107 1713 2144 2418 2639 2820
5900.00 1111 1721 2155 2429 2651 2833
5950.00 1116 1729 2165 2440 2663 2847
6000.00 1121 1737 2175 2451 2676 2860
6050.00 1126 1746 2185 2462 2688 2874
6100.00 1131 1754 2196 2473 2700 2887
6150.00 1136 1762 2206 2484 2712 2900
6200.00 1141 1770 2216 2495 2724 2914
6250.00 1145 1778 2227 2506 2737 2927
6300.00 1150 1786 2237 2517 2749 2941
6350.00 1155 1795 2247 2529 2761 2954
6400.00 1160 1803 2258 2540 2773 2967
6450.00 1165 1811 2268 2551 2785 2981
6500.00 1170 1819 2278 2562 2798 2994
6550.00 1175 1827 2288 2573 2810 3008
6600.00 1179 1835 2299 2584 2822 3021
6650.00 1184 1843 2309 2595 2834 3034
6700.00 1189 1850 2317 2604 2845 3045
6750.00 1193 1856 2325 2613 2854 3055
6800.00 1196 1862 2332 2621 2863 3064
6850.00 1200 1868 2340 2630 2872 3074
6900.00 1204 1873 2347 2639 2882 3084
6950.00 1208 1879 2355 2647 2891 3094
7000.00 1212 1885 2362 2656 2900 3103
7050.00 1216 1891 2370 2664 2909 3113
7100.00 1220 1897 2378 2673 2919 3123
7150.00 1224 1903 2385 2681 2928 3133
7200.00 1228 1909 2393 2690 2937 3142
7250.00 1232 1915 2400 2698 2946 3152
7300.00 1235 1921 2408 2707 2956 3162
7350.00 1239 1927 2415 2716 2965 3172
7400.00 1243 1933 2423 2724 2974 3181
7450.00 1247 1939 2430 2733 2983 3191
7500.00 1251 1945 2438 2741 2993 3201
7550.00 1255 1951 2446 2750 3002 3211
7600.00 1259 1957 2453 2758 3011 3220
7650.00 1263 1963 2461 2767 3020 3230
7700.00 1267 1969 2468 2775 3030 3240
7750.00 1271 1975 2476 2784 3039 3250
7800.00 1274 1981 2483 2792 3048 3259
7850.00 1278 1987 2491 2801 3057 3269
7900.00 1282 1992 2498 2810 3067 3279
7950.00 1286 1998 2506 2818 3076 3289
8000.00 1290 2004 2513 2827 3085 3298
8050.00 1294 2010 2521 2835 3094 3308
8100.00 1298 2016 2529 2844 3104 3318
8150.00 1302 2022 2536 2852 3113 3328
8200.00 1306 2028 2544 2861 3122 3337
8250.00 1310 2034 2551 2869 3131 3347
8300.00 1313 2040 2559 2878 3141 3357
8350.00 1317 2046 2566 2887 3150 3367
8400.00 1321 2052 2574 2895 3159 3376
8450.00 1325 2058 2581 2904 3168 3386
8500.00 1329 2064 2589 2912 3178 3396
8550.00 1333 2070 2597 2921 3187 3406
8600.00 1337 2076 2604 2929 3196 3415
8650.00 1341 2082 2612 2938 3205 3425
8700.00 1345 2088 2619 2946 3215 3435
8750.00 1349 2094 2627 2955 3224 3445
8800.00 1352 2100 2634 2963 3233 3454
8850.00 1356 2106 2642 2972 3242 3464
8900.00 1360 2111 2649 2981 3252 3474
8950.00 1364 2117 2657 2989 3261 3484
9000.00 1368 2123 2664 2998 3270 3493
9050.00 1372 2129 2672 3006 3279 3503
9100.00 1376 2135 2680 3015 3289 3513
9150.00 1380 2141 2687 3023 3298 3523
9200.00 1384 2147 2695 3032 3307 3532
9250.00 1388 2153 2702 3040 3316 3542
9300.00 1391 2159 2710 3049 3326 3552
9350.00 1395 2165 2717 3058 3335 3562
9400.00 1399 2171 2725 3066 3344 3571
9450.00 1403 2177 2732 3075 3353 3581
9500.00 1407 2183 2740 3083 3363 3591
9550.00 1411 2189 2748 3092 3372 3601
9600.00 1415 2195 2755 3100 3381 3610
9650.00 1419 2201 2763 3109 3390 3620
9700.00 1422 2206 2767 3115 3396 3628
9750.00 1425 2210 2772 3121 3402 3634
9800.00 1427 2213 2776 3126 3408 3641
9850.00 1430 2217 2781 3132 3414 3647
9900.00 1432 2221 2786 3137 3420 3653
9950.00 1435 2225 2791 3143 3426 3659
10000.00 1437 2228 2795 3148 3432 3666
(a) If the obligor parent’s net income is less than the amount in the guidelines schedule:

1. The parent should be ordered to pay a child support amount, determined on a case-by-case basis, to establish the principle of payment and lay the basis for increased support orders should the parent’s income increase.
2. The obligor parent’s child support payment shall be the lesser of the obligor parent’s actual dollar share of the total minimum child support amount, as determined in subparagraph 1., and 90 percent of the difference between the obligor parent’s monthly net income and the current poverty guidelines as periodically updated in the Federal Register by the United States Department of Health and Human Services pursuant to 42 U.S.C. § 9902(2) for a single individual living alone.
(b) For combined monthly net income greater than the amount in the guidelines schedule, the obligation is the minimum amount of support provided by the guidelines schedule plus the following percentages multiplied by the amount of income over $10,000:

Child or Children
One Two Three Four Five Six
5.0% 7.5% 9.5% 11.0% 12.0% 12.5%
(7) Child care costs incurred due to employment, job search, or education calculated to result in employment or to enhance income of current employment of either parent shall be added to the basic obligation. After the child care costs are added, any moneys prepaid by a parent for child care costs for the child or children of this action shall be deducted from that parent’s child support obligation for that child or those children. Child care costs may not exceed the level required to provide quality care from a licensed source.
(8) Health insurance costs resulting from coverage ordered pursuant to s. 61.13(1)(b), and any noncovered medical, dental, and prescription medication expenses of the child, shall be added to the basic obligation unless these expenses have been ordered to be separately paid on a percentage basis. After the health insurance costs are added to the basic obligation, any moneys prepaid by a parent for health-related costs for the child or children of this action shall be deducted from that parent’s child support obligation for that child or those children.
(9) Each parent’s percentage share of the child support need shall be determined by dividing each parent’s net monthly income by the combined net monthly income.
(10)(a) Each parent’s actual dollar share of the total minimum child support need shall be determined by multiplying the minimum child support need by each parent’s percentage share of the combined monthly net income.
(b)1. A parent is entitled to credit for social security benefits paid directly to the child or the child’s caregiver when the benefits are paid due to the parent’s retirement or disability. The parent’s share of the monthly support obligation is paid in full each month for which such benefits are paid that are equal to or greater than the parent’s share of the monthly obligation. If the benefits are less than the parent’s share of the monthly obligation, the parent owes the difference. If the benefits are more than the parent’s share of the monthly obligation, the excess inures to the benefit of the child and may not be credited to arrears or retroactive support that accrued before the benefits commenced.
2. To obtain credit for social security benefits paid, a parent subject to a court order for child support, or the department in a Title IV-D case, may file a motion with the court or include the request in a petition to modify the support order. Alternatively, in a Title IV-D case, the department may determine and apply credit after notice and an opportunity for a hearing are provided in accordance with chapter 120. If the department determines that a credit applies, the department shall notify the clerk of court, and the clerk shall update the payment record to reflect the credit.
(11)(a) The court may adjust the total minimum child support award, or either or both parents’ share of the total minimum child support award, based upon the following deviation factors:

1. Extraordinary medical, psychological, educational, or dental expenses.
2. Independent income of the child, not to include moneys received by a child from supplemental security income.
3. The payment of support for a parent which has been regularly paid and for which there is a demonstrated need.
4. Seasonal variations in one or both parents’ incomes or expenses.
5. The age of the child, taking into account the greater needs of older children.
6. Special needs, such as costs that may be associated with the disability of a child, that have traditionally been met within the family budget even though fulfilling those needs will cause the support to exceed the presumptive amount established by the guidelines.
7. Total available assets of the obligee, obligor, and the child.
8. The impact of the Internal Revenue Service Child & Dependent Care Tax Credit, Earned Income Tax Credit, and dependency exemption and waiver of that exemption. The court may order a parent to execute a waiver of the Internal Revenue Service dependency exemption if the paying parent is current in support payments.
9. An application of the child support guidelines schedule that requires a person to pay another person more than 55 percent of his or her gross income for a child support obligation for current support resulting from a single support order.
10. The particular parenting plan, a court-ordered time-sharing schedule, or a time-sharing arrangement exercised by agreement of the parties, such as where the child spends a significant amount of time, but less than 20 percent of the overnights, with one parent, thereby reducing the financial expenditures incurred by the other parent; or the refusal of a parent to become involved in the activities of the child.
11. Any other adjustment that is needed to achieve an equitable result which may include, but not be limited to, a reasonable and necessary existing expense or debt. Such expense or debt may include, but is not limited to, a reasonable and necessary expense or debt that the parties jointly incurred during the marriage.
(b) Whenever a particular parenting plan, a court-ordered time-sharing schedule, or a time-sharing arrangement exercised by agreement of the parties provides that each child spend a substantial amount of time with each parent, the court shall adjust any award of child support, as follows:

1. In accordance with subsections (9) and (10), calculate the amount of support obligation apportioned to each parent without including day care and health insurance costs in the calculation and multiply the amount by 1.5.
2. Calculate the percentage of overnight stays the child spends with each parent.
3. Multiply each parent’s support obligation as calculated in subparagraph 1. by the percentage of the other parent’s overnight stays with the child as calculated in subparagraph 2.
4. The difference between the amounts calculated in subparagraph 3. shall be the monetary transfer necessary between the parents for the care of the child, subject to an adjustment for day care and health insurance expenses.
5. Pursuant to subsections (7) and (8), calculate the net amounts owed by each parent for the expenses incurred for day care and health insurance coverage for the child.
6. Adjust the support obligation owed by each parent pursuant to subparagraph 4. by crediting or debiting the amount calculated in subparagraph 5. This amount represents the child support which must be exchanged between the parents.
7. The court may deviate from the child support amount calculated pursuant to subparagraph 6. based upon the deviation factors in paragraph (a), as well as the obligee parent’s low income and ability to maintain the basic necessities of the home for the child, the likelihood that either parent will actually exercise the time-sharing schedule set forth in the parenting plan, a court-ordered time-sharing schedule, or a time-sharing arrangement exercised by agreement of the parties, and whether all of the children are exercising the same time-sharing schedule.
8. For purposes of adjusting any award of child support under this paragraph, “substantial amount of time” means that a parent exercises time-sharing at least 20 percent of the overnights of the year.
(c) A parent’s failure to regularly exercise the time-sharing schedule set forth in the parenting plan, a court-ordered time-sharing schedule, or a time-sharing arrangement exercised by agreement of the parties not caused by the other parent which resulted in the adjustment of the amount of child support pursuant to subparagraph (a)10. or paragraph (b) shall be deemed a substantial change of circumstances for purposes of modifying the child support award. A modification pursuant to this paragraph is retroactive to the date the noncustodial parent first failed to regularly exercise the court-ordered or agreed time-sharing schedule.
(12)(a) A parent with a support obligation may have other children living with him or her who were born or adopted after the support obligation arose. If such subsequent children exist, the court, when considering an upward modification of an existing award, may disregard the income from secondary employment obtained in addition to the parent’s primary employment if the court determines that the employment was obtained primarily to support the subsequent children.
(b) Except as provided in paragraph (a), the existence of such subsequent children should not as a general rule be considered by the court as a basis for disregarding the amount provided in the guidelines schedule. The parent with a support obligation for subsequent children may raise the existence of such subsequent children as a justification for deviation from the guidelines schedule. However, if the existence of such subsequent children is raised, the income of the other parent of the subsequent children shall be considered by the court in determining whether or not there is a basis for deviation from the guideline amount.
(c) The issue of subsequent children under paragraph (a) or paragraph (b) may only be raised in a proceeding for an upward modification of an existing award and may not be applied to justify a decrease in an existing award.
(13) If the recurring income is not sufficient to meet the needs of the child, the court may order child support to be paid from nonrecurring income or assets.
(14) Every petition for child support or for modification of child support shall be accompanied by an affidavit which shows the party’s income, allowable deductions, and net income computed in accordance with this section. The affidavit shall be served at the same time that the petition is served. The respondent, whether or not a stipulation is entered, shall make an affidavit which shows the party’s income, allowable deductions, and net income computed in accordance with this section. The respondent shall include his or her affidavit with the answer to the petition or as soon thereafter as is practicable, but in any case at least 72 hours prior to any hearing on the finances of either party.
(15) For purposes of establishing an obligation for support in accordance with this section, if a person who is receiving public assistance is found to be noncooperative as defined in s. 409.2572, the department may submit to the court an affidavit or written declaration signed under penalty of perjury as specified in s. 92.525(2) attesting to the income of that parent based upon information available to the department.
(16) The Legislature shall review the guidelines schedule established in this section at least every 4 years beginning in 1997.
(17) In an initial determination of child support, whether in a paternity action, dissolution of marriage action, or petition for support during the marriage, the court has discretion to award child support retroactive to the date when the parents did not reside together in the same household with the child, not to exceed a period of 24 months preceding the filing of the petition, regardless of whether that date precedes the filing of the petition. In determining the retroactive award in such cases, the court shall consider the following:

(a) The court shall apply the guidelines schedule in effect at the time of the hearing subject to the obligor’s demonstration of his or her actual income, as defined by subsection (2), during the retroactive period. Failure of the obligor to so demonstrate shall result in the court using the obligor’s income at the time of the hearing in computing child support for the retroactive period.
(b) All actual payments made by a parent to the other parent or the child or third parties for the benefit of the child throughout the proposed retroactive period.
(c) The court should consider an installment payment plan for the payment of retroactive child support.