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AffordMath

What changed

What has changed in AffordMath, and where it matters to you.

This lists changes a reader would notice: a figure that moved, a rule that was corrected, a page that appeared. Where a change concerns only some places, the entry says which.

Sources, in plain words

  • Sources explains each figure in a sentence or two of plain words, not in our verification notes. See it

Rent vs Buy shows and corrects the taxes on a sale

  • Rent vs Buy now lists the tax on a sale gain above the federal home-sale exclusion, which its result already subtracted. See it
  • The taxed home-sale gain now counts selling costs, as the IRS does, so a large gain owes less than before. See it
  • Its calculation now shows the tax on investment gains on both sides, so every subtotal adds up. See it
  • Down Payment now says a sold investment's gain is taxed whole at the flat long-term rate, as the US taxes it. See it

Seattle, Washington is now covered

  • Seattle, Washington: King County's 2026 tax rate, NWMLS median prices and HUD's fair-market rent. See it
  • Rent vs Buy deducts Washington's real estate excise tax, which the seller pays, when you sell. See it

Affects: Seattle

Answers first, and a way back to your numbers

  • A first visit opens no section: the answer comes first, and nothing red is built on numbers you have not given.
  • Every tool has an “Adjust your numbers” link from the answer to the fields that change it.
  • Affordability warns when the budget it assumes is more than your monthly income, and asks for yours. See it
  • Affordability's math column now multiplies out to the price it shows. See it
  • Closing Costs leads with the closing costs; cash to close, down payment included, sits beside it. See it
  • Amortization's renewal rate is one choice at the top of its section. See it

Readable sources, keyboard use, clearing your numbers

  • Sources names the figure each document backs. See it
  • A skip link, one legend link instead of many small marks, and tables you can scroll with a keyboard.
  • “Clear my numbers” in the footer removes everything this site saved in your browser.
  • Home shows a worked example of the two ceilings. See it

Affordability now names the lender's limit first

  • When a lender would approve less than you could comfortably carry, Affordability now says so first. See it
  • The “Assuming…” tag now jumps to the monthly budget it assumes, which moved to the first group of fields. See it
  • Rent vs Buy answers straight away using the published apartment rent, clearly labelled, and asks for yours. See it
  • Returning with saved numbers no longer makes the page jump while they load.
  • A mistyped address now gets a proper page in your language instead of a bare error.
  • This page, and a quiet note in the footer that points to it when something changes. See it

Closing costs say what the totals include

  • Affordability: the lender limit is now marked at its own value on the gap band, not at the right edge. See it
  • Closing Costs and Down Payment now say plainly which totals include the down payment and which do not. See it
  • Down Payment shows “Not entered yet” for accounts you have not filled in, instead of $0. See it
  • Scenarios now leads with your own down payment column, so its figure matches Affordability. See it

US closing costs now use US terms

  • Closing Costs uses US terms for the deposit, the tax adjustment and new-construction fees: earnest money, the Closing Disclosure and impact fees. See it
  • US pages use “Loan term” with 15- and 30-year options. See it

Phone header fits; number fields show every decimal

  • On phones the header no longer overlaps; a long place name is shortened inside its own control.
  • Every control now shows the same keyboard focus outline.
  • Number fields show every decimal they use: 5.25% no longer reads as 5. See it
  • Adding a second applicant no longer assumes an income; the field starts empty. See it

US terms throughout the US pages

  • US pages now use US terms throughout: PMI, debt-to-income ratios and county recording fees.

Austin, Texas added

  • Austin (Travis County), Texas, is now available as a place. See it

Affects: Austin

United States (Houston) and legal pages

  • AffordMath now covers the United States, starting with Houston, Texas. See it
  • The privacy policy and terms of use are published in every language the site offers, linked from the footer. See it