First-Home Q&A #2: What to Count Before You Renew the Lease

For anyone weighing a lease renewal ahead of Boston’s September 1 moving day: the timing arithmetic to do before you sign.

Why summer is the fork

Unlike most cities, Boston’s leases start and end in a cluster on September 1. So every year around now, a lot of renters decide whether to extend for another year or make the jump to buying.

The problem is the vague belief that “buying takes too long,” which leads people to sign the renewal without running the numbers.

Counting the purchase timeline backward

A first purchase goes pre-approval → touring → offer → inspection → loan commitment → closing, and pre-approval to closing usually takes 30 to 45 days.

Start pre-approval in mid-July and the closing lands in mid-to-late August. In other words, starting in summer does not make a move-in before September 1 physically impossible.

When a program deadline lands in the same window

Sometimes there is a second variable. As covered in episode 1, when a program with a fixed deadline — MassHousing’s interest-free down payment assistance, for example — is running at the same time, delaying the renewal decision can mean missing that round. Even if you buy later, that round is gone.

In summer 2026 that deadline was July 31. Whenever the next round comes, the principle holds: when a program cutoff and a lease expiry overlap, pre-approval has to come before both.

The checkpoint before you sign

Renewing for another year is not a mistake in itself. But if your reason is “there isn’t time to buy,” that judgment can turn on a single pre-approval result — and that is worth confirming before you sign.

Pre-approval takes days, and costs you nothing if you decide not to buy. I will put renewing and buying side by side in numbers with you.