Programmatic Reference Matrix

Prorated Rent by Number of Days

Select any duration from 1 to 31 days to view comprehensive rent proration tables, exact mathematical formulas, and rent breakdowns from $500 to $5,000/mo.

1 Day
30-day mo: 3.3% 31-day mo: 3.2%

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2 Days
30-day mo: 6.7% 31-day mo: 6.5%

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3 Days
30-day mo: 10% 31-day mo: 9.7%

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4 Days
30-day mo: 13.3% 31-day mo: 12.9%

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5 Days
30-day mo: 16.7% 31-day mo: 16.1%

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6 Days
30-day mo: 20% 31-day mo: 19.4%

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7 Days
30-day mo: 23.3% 31-day mo: 22.6%

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8 Days
30-day mo: 26.7% 31-day mo: 25.8%

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9 Days
30-day mo: 30% 31-day mo: 29%

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10 Days
30-day mo: 33.3% 31-day mo: 32.3%

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11 Days
30-day mo: 36.7% 31-day mo: 35.5%

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12 Days
30-day mo: 40% 31-day mo: 38.7%

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13 Days
30-day mo: 43.3% 31-day mo: 41.9%

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14 Days
30-day mo: 46.7% 31-day mo: 45.2%

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15 Days
30-day mo: 50% 31-day mo: 48.4%

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16 Days
30-day mo: 53.3% 31-day mo: 51.6%

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17 Days
30-day mo: 56.7% 31-day mo: 54.8%

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18 Days
30-day mo: 60% 31-day mo: 58.1%

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19 Days
30-day mo: 63.3% 31-day mo: 61.3%

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20 Days
30-day mo: 66.7% 31-day mo: 64.5%

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21 Days
30-day mo: 70% 31-day mo: 67.7%

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22 Days
30-day mo: 73.3% 31-day mo: 71%

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23 Days
30-day mo: 76.7% 31-day mo: 74.2%

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24 Days
30-day mo: 80% 31-day mo: 77.4%

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25 Days
30-day mo: 83.3% 31-day mo: 80.6%

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26 Days
30-day mo: 86.7% 31-day mo: 83.9%

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27 Days
30-day mo: 90% 31-day mo: 87.1%

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28 Days
30-day mo: 93.3% 31-day mo: 90.3%

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29 Days
30-day mo: 96.7% 31-day mo: 93.5%

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30 Days
30-day mo: 100% 31-day mo: 96.8%

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31 Days
30-day mo: 103.3% 31-day mo: 100%

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How Daily Rent Apportionment Works

Whether you need to calculate rent for a single day of holdover tenancy or 29 days of a move-in month, our daily index isolates the mathematical variations across 28-day, 29-day, 30-day, and 31-day calendar months.

Key Takeaways for Daily Proration:

  • Single Day Tenancy (1 Day): Typically calculated as Rent ÷ 30 or Rent ÷ 31. Holdover penalties may apply if unauthorized.
  • Half-Month Tenancy (15 Days): Equals exactly 50% under the Banker's 30-day rule, but 48.39% in a 31-day month.
  • Month-End Moves: Ensure both move-in and move-out days are verified in your formal lease contract.