Twelve months out — build the base
This window is for the things that cannot be rushed: savings and payment history. Automate a transfer into a dedicated home fund the day you get paid. Set every minimum payment to autopay so a single missed due date doesn't cost you thirty to eighty points.
If you're carrying revolving debt, this is the year to attack the balances with the highest utilization percentage first — not the highest balance, and not the highest rate. Utilization is what the score model reacts to fastest.
Six months out — stabilize everything
Stop making changes. No new credit accounts, no closing old accounts, no job changes into a different industry or pay structure if you can avoid it. Lenders reward boring.
This is also when to get your real numbers on paper: gross monthly income, every recurring debt payment, and total liquid savings. Those three numbers determine your approval far more than the house you pick.
Ninety days out — the acceleration window
Ninety days is enough time to move a credit score meaningfully. Pay revolving balances below 30% of each limit, and below 10% if you can reach it — the difference between those two is often 20 to 40 points. Ask a family member with a long, clean card to add you as an authorized user if your file is thin.
Also: stop moving money. Any deposit that isn't payroll will need to be explained and sourced in underwriting. Large cash deposits are the single most common documentation headache for first-time buyers.
Thirty days out — assemble the file
Gather two recent pay stubs, two years of W-2s, two months of statements for every asset account, and two years of tax returns if you're self-employed or commissioned. Scan them as PDFs. A complete document package is what turns a three-day pre-approval into a same-day one.
Then get pre-approved before you tour a single home. Shopping first and financing second is how buyers end up heartbroken.
The whole time — protect the file
From the day you start until the day you hold keys, three rules never change: don't open new credit, don't change jobs, and don't make large unexplained deposits. Every one of those triggers a re-verification, and re-verifications happen at the worst possible moment — usually 72 hours before closing.
Frequently asked questions
Is 90 days enough time to prepare?
It's enough to raise a score and organize documents, but not enough to build a down payment from scratch. If cash is the gap, you need longer. If credit is the gap, 90 days is often sufficient.
How long do funds need to be in my account?
Most lenders want to see 60 days of statements. Money sitting there across two full statement cycles is considered seasoned and requires no sourcing.
Should I pay off all my debt before buying?
Not necessarily. Paying down revolving balances helps both your score and your DTI. Draining your savings to zero to eliminate a low-payment installment loan usually hurts more than it helps, because reserves matter.
Does checking my own credit hurt my score?
No. Pulling your own report is a soft inquiry and has no effect. Multiple mortgage inquiries within a 45-day window also count as a single inquiry for scoring purposes.
Run your numbers
Take what you just learned and apply it to your file.