Budget Backwards method
How we research
The short version
Budget Backwards is built from public rulebooks, agency explainers and official forms, read first-hand rather than summarized from other websites. Debt-to-income rules from the CFPB and buyer guidance from Fannie Mae and Freddie Mac anchor the budget method, and those are rechecked whenever they change.
Last reviewed against the primary sources listed below.
Where questions come from
Topics come from the questions people type into search engines about this subject, gathered from free public autocomplete suggestions, then narrowed to the ones this site's focus can answer well.
Sources we rely on
Pages cite these primary sources, among others. Each guide lists the exact sources it used at the bottom of the page.
How a page is checked
- Each factual statement is matched to a primary source.
- Plain-language wording is compared back to the source so meaning is not lost.
- The review date at the top of the page is updated only after that check.
Pages written this way
- How much house can I afford? Start from the budget
- Housing ratios explained: front-end and back-end DTI
- Building a non-mortgage budget before you buy a home
- Reserves after closing: how much cushion to keep once you buy
- Stress-testing your home budget before you commit
- Home budget worksheet: printable budget-first planning page
- Why the amount a lender approves can be more than you can afford
- How much should you budget for home maintenance?
About the Budget Backwards reverse calculator
The Budget Backwards reverse calculator uses only what you type, works entirely in the browser and keeps nothing.