When Is the Best Time to Buy a Car? (2026 Data)

The short answer

The cheapest 72-hour window of the year to buy a new car is December 29, 30, 31. It stacks four motivators on the dealership simultaneously: end-of-month, end-of-quarter, end-of-calendar-year, and (for most brands) end-of-bonus-period. Average transaction prices in this window run 6–10% below the annual average on the same vehicle.

If you can't wait for December, the second-best windows are the last 3 days of March, June, and September (end-of-month + end-of-quarter stack) and the model-year-changeover window (typically August–October), when outgoing model-year inventory needs to clear.

Spring (March 1 → late May) is the most expensive time to buy. Demand peaks (tax refunds, school-year-end), supply has normalized, and dealers feel zero urgency to discount.

The 4 timing levers that stack

1. End of month (sales-rep quotas). Sales reps work on monthly quotas tied to bonus tiers. A rep one car short of their next tier on the 30th will sell at near-zero margin to hit the bonus. Average discount on the last 3 days of any month vs. the first 10: ~1.8% off OTD.

2. End of quarter (sales-manager quotas). Sales managers receive quarterly bonuses tied to dealership volume. The motivation cascades down the entire team. Quarter-end (March, June, September, December) adds ~0.8–1.2% on top of the monthly effect.

3. End of model year (inventory carrying cost). Once the new model year hits the lot, the outgoing year occupies floor-plan financing dollars that drain dealer margin every day. Outgoing model-year vehicles routinely have $1,500–$3,500 in additional manufacturer cash plus dealer-side discounting.

4. End of calendar year (manufacturer bonuses). Most manufacturers run year-end bonuses paid to dealers based on full-year volume and CSI (customer satisfaction) scores. Dealers close to a tier threshold will sell at a loss to capture the bonus, which often exceeds the per-car loss by 3–5×.

The month-by-month data

Average new-car transaction-price index by month (100 = annual average):

| Month | Index | Notes |

|---|---|---|

| January | 99 | Post-holiday slump |

| February | 101 | Tax-refund early arrivals |

| March | 103 | Tax-refund peak; spring buying |

| April | 104 | Peak spring demand |

| May | 103 | Pre-summer demand |

| June | 101 | Mid-year incentive bump |

| July | 100 | Model-year wind-down begins |

| August | 98 | Outgoing model year clears |

| September | 99 | Quarter-end + new model arrivals |

| October | 99 | Model-year-changeover residue |

| November | 97 | Holiday promotional discounts |

| December | 94 | Best month of the year |

Index source: 5-year average of Cox Automotive / Edmunds transaction-price data, normalized to 100 = full-year average. Variation by model: economy and EV models show ~50% higher monthly variance; luxury models show ~30% lower variance.

The weekday pattern (often underrated)

Within any given month, the day of the week matters:

• Monday–Wednesday: dealer foot traffic is lowest, sales reps are hungriest. Best for negotiation pressure.

• Thursday: salespeople begin to triage which deals they'll push to close before the weekend. Decent.

• Friday–Saturday: dealership is busy. Sales reps focused on volume — they'll discount less to any single buyer, but the F&I office is more willing to make concessions because they're processing many deals.

• Sunday (where open): lowest-pressure environment, but also lowest dealer urgency. Skip.

The optimal combination: Monday-Wednesday of the last week of the month, ideally end of quarter or end of year. You're the dealer's most-wanted prospect.

The model-year-changeover window (the pure-arbitrage play)

When the 2026 model arrives at dealerships (typically July–September depending on brand), the 2025 model is functionally identical to the 2026 in 80% of cases — same engine, same chassis, same safety systems, same infotainment. The differences are usually cosmetic (new grille, new color palette, minor trim adjustments).

But the depreciation curve resets when the model-year flips. The 2025 immediately drops 8–14% in book value the day the 2026 hits the lot, even though it's the same physical car. That depreciation is your opportunity:

• Manufacturer discount on outgoing model-year: $1,500–$3,500

• Dealer cash on outgoing model-year: $500–$2,000

• Plus the same dealer-financing markups you would have negotiated against on the 2026

Net savings on outgoing model-year inventory: typically 6–12% off comparable 2026 MSRP.

Worst times to buy

1. April–May. Tax-refund spending peak. Dealers don't discount because they don't have to. Avoid unless you have a specific compelling reason.

2. The first 10 days of any month. Salespeople just got their monthly quotas reset. Zero urgency. Don't expect movement on price.

3. When a hot model has < 30-day supply. Some EVs and popular trims (Cybertruck, Maverick Hybrid, certain Toyota SUVs) routinely sell at MSRP or above because demand exceeds supply. Walk if the dealer won't move on OTD — wait 3–6 months for supply to normalize.

4. When a hurricane or natural disaster has hit a major used-car region. Insurance payouts flood the new-car market with cash buyers, raising prices for 60–90 days. Wait it out.

The 4-step playbook

Step 1 (60 days before purchase): Identify the exact trim and option package. Set up email alerts at TrueCar / Edmunds / CarGurus for VINs matching your spec within 50 miles. Track 2–3 specific VINs for price drops.

Step 2 (14 days before purchase): Get pre-approved from 2 outside lenders (PenFed + Capital One + AutoPay covers most cases). Soft-pull only.

Step 3 (last week of target month): Email 4–6 local dealers the SAME structured OTD-quote request (see our negotiate-car-price guide). Take the lowest-quoting dealer's number to the second-lowest dealer to bid against it.

Step 4 (last 72 hours of month): Close the deal in person. Have your pre-approval as backup; let the dealer's F&I beat it by 0.25% if they can.

Used-car timing is the inverse

Used-car prices follow the opposite cycle: lowest in October–December (after dealers liquidate trade-ins from new-car-shopping season), highest March–May (tax-refund demand). Used-car savings of 3–6% are typical when buying in the slow Q4 window vs. spring peak.

Bottom line

Buy in December if you can. If you can't, target the last 3 days of any month — ideally a quarter-end (March, June, September, December). Use the model-year changeover window for pure depreciation arbitrage on the outgoing year. Avoid April–May. Combine timing with disciplined negotiation (OTD-only, email-first, pre-approved financing) and you'll consistently beat MSRP by $1,800–$3,400.

Frequently asked questions

Is Memorial Day really a good time to buy?

Marginally. Memorial Day sales are heavily advertised but the actual discounts are usually 1–2% above the regular monthly average. Year-end almost always beats it.

Should I wait for the new model year?

If you want the previous year's model, yes — wait until the new year arrives at dealers, then buy the outgoing trim. If you want the latest model, the discount is too small to wait.