Once you have the keys, a focused first month sets you up for years of smooth ownership: transfer utilities, secure the home, update your records, and tackle a few smart maintenance items before life gets busy.

Direct AnswerIn your first 30 days as a new homeowner: transfer or start utilities, change the locks and update security, update your address with USPS and key accounts, locate shutoffs and the electrical panel, change HVAC filters, test smoke and CO detectors, set up homeowner's insurance and document the home's condition, and store your closing paperwork safely.
Information current as of 2026.

Week 1 — safety and utilities

  1. Confirm electricity, gas, water, trash, and internet are in your name.
  2. Change all exterior locks or re-key them.
  3. Locate the main water shutoff, gas shutoff, and electrical panel.
  4. Test and replace batteries in smoke and CO detectors.
  5. Set up or verify homeowner's insurance is active as of closing.

Week 2 — records and address

  • File a change of address with USPS.
  • Update your driver's license, bank, employer, and subscriptions.
  • Register with the HOA if applicable and review the rules.
  • Save your closing documents and Closing Disclosure securely.

Weeks 3–4 — maintenance setup

  • Replace HVAC filters and note the size.
  • Note appliance models and warranties.
  • Plan any inspection-flagged maintenance.
  • Start a simple home-maintenance calendar.

This is general information, not legal, tax, or financial advice — consult a licensed professional for your situation.

Document everything

Photograph the home's move-in condition, keep receipts for improvements, and start a folder (digital or physical) for warranties and manuals. This pays off at tax time and resale. Where a number varies, confirm current figures for your transaction.

Settle in thoughtfully

Resist the urge to renovate everything at once. Live in the home through a season first to understand how it functions before major projects.

Building good habits early

The systems you set up in the first month — maintenance calendar, document folder, vendor list — pay off for years. A little structure now prevents bigger headaches later.

Frequently Asked Questions

What should I do first after closing?

Transfer utilities, change the locks, and locate the main shutoffs and electrical panel for safety.

How do I update my address?

File a change of address with USPS and update your license, bank, employer, and key accounts.

Should I change the locks?

Yes — re-keying or replacing exterior locks is a smart first-day security step.

What maintenance comes first?

Replace HVAC filters, test detectors, and address any safety items flagged in the inspection.

Where should I keep closing documents?

Store them securely (digital and/or physical); you'll need them for taxes and resale. Where a number varies, confirm current figures for your transaction.

Should I renovate right away?

It's often wiser to live in the home through a season before major projects to understand how it functions.

Primary sourcesCalifornia Association of REALTORS®, California Department of Real Estate, Consumer Financial Protection Bureau. General information only — verify current figures and confirm legal, tax, or financial questions with a licensed professional.

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