Your first apartment introduces a range of financial obligations most people have never dealt with before. The mistakes here are predictable — and preventable.

Mistake 1: No Renter’s Insurance

Renter’s insurance is one of the most widely skipped but highest-value insurance products available to young people.

What renter’s insurance covers:

  • Personal property (stolen or damaged laptop, furniture from fire, clothing from burst pipe)
  • Liability (you accidentally flood the apartment below, someone slips in your unit)
  • Additional living expenses (hotel stay if your unit becomes temporarily uninhabitable)

Cost vs. value:

Annual Premium Personal Property Coverage Liability Coverage
$180-$360/year $15,000-$30,000 $100,000-$300,000

Average renters have $20,000-$35,000 worth of belongings at replacement value. Renters who skip insurance are self-insuring against that exposure for $15-$30/month in premium savings.

Fix: Get renter’s insurance before you move in. Many landlords now require it. Bundle with auto insurance for a discounted rate.

Mistake 2: Renting Without a Move-In Written Inventory

New renters moving in without documenting pre-existing damage get charged for it when they move out.

The security deposit risk: Landlords can withhold security deposits for damage — but only damage caused during your tenancy. If you don’t document that a wall scuff, carpet stain, or broken door hinge existed before you arrived, you can be billed for it at move-out.

Fix: On your first day in the apartment, photograph every room and every damaged/worn area in detail. Text or email these photos to the landlord immediately, or use whatever move-in inspection form is provided. Keep copies forever.

Mistake 3: Furnishing on Credit

An empty apartment and a new credit card is a dangerous combination. Furnishing an entire apartment by charging furniture, appliances, and decor generates debt that takes years to pay off at 20-25% APR.

Cost of credit card furnishing:

Credit Card Balance APR Monthly Payment Years to Payoff Total Interest Paid
$3,000 24% $75 minimum 7+ years $2,400+
$3,000 24% $150 24 months $700
$3,000 24% $250 14 months $385

Fix: Furnish a first apartment in stages. Buy what you need (bed, desk, kitchen basics) and let the rest come over time — from garage sales, Facebook Marketplace, or family. The instagrammable fully-furnished-on-day-one apartment isn’t worth the debt.

Mistake 4: Not Budgeting Utilities

Many first apartments list rent without utilities, meaning you’re responsible for electric, gas, internet, and sometimes water/trash. First-time renters often discover these costs at move-in rather than during apartment-hunting.

New renter utilities budget:

Utility Average Monthly Cost
Electricity $80-$150
Gas/heating $40-$120 (seasonal)
Internet $50-$85
Renter’s insurance $15-$30
Water/trash (if not included) $30-$60
Total (beyond rent) $215-$445/month

Fix: Ask the landlord what the average utility bills are for the unit. Call the electric/gas provider and ask for the average usage history before signing.

Mistake 5: Signing a Lease Without Reading It

Leases contain binding terms covering months of financial exposure. Not reading the lease before signing means agreeing to terms you may not be aware of.

Key lease terms to read:

  • Notice to vacate (common: 30-60 days)
  • Early termination penalty (often 1-3 months rent)
  • Late payment terms and fees
  • Subletting and guest policies
  • Pet terms and fees (often non-refundable)
  • Renewal terms and notice
  • Maintenance responsibilities

Fix: Read the entire lease. Ask about any clause you don’t understand before signing. Addenda (often added to standard leases) are equally binding — read those too.

Mistake 6: Splitting Costs Informally with Roommates

Informal cost-sharing agreements with roommates — even close friends — break down over time.

Common roommate financial friction points:

  • Utilities: person A pays the bill but person B doesn’t repay promptly
  • Groceries: shared vs. individual — unclear boundary
  • Security deposit: who contributed how much; who gets what back
  • Furniture purchased together: how to split at move-out
  • One roommate moves out early: lease is still binding

Fix: Put arrangements in writing. Use apps like Splitwise for ongoing shared costs. For security deposit contributions, keep a written record of who paid what.

Related: First Job Money Mistakes | Financial Mistakes in Your 20s | First House Buying Mistakes | Money Mistakes at 22