# Net Effective Rent: Definition, Formula, and Calculator > Net effective = (base × months − free rent) ÷ months. $1,172 base with 10 weeks free on 12 months is $947 (as of Oct 25, 2026). URL: https://newapartmentsaustin.com/guides/net-effective-rent/ Last-Modified: 2026-10-25 Guide · Specials # What Is Net Effective Rent and How Do You Calculate It? Net effective = (base × months − free rent) ÷ months. $1,172 base with 10 weeks free on 12 months is $947 (as of Oct 25, 2026). The formula, a worked example, and its limits. Written by New Austin Apartment Team [/about/#new-austin-apartment-team →](/about/#new-austin-apartment-team) · Reviewed by the team, Spirit Real Estate Group, LLC · Updated October 25, 2026 · 7 min read - Free to you, and your rent is the same either way - 144 new communities tracked (as of Oct 25, 2026) - Prices pulled every morning ![Calculator and a printed apartment special flyer on a sunlit oak desk](/images/featured/calculator-and-a-printed-apartment-special-flyer-o.webp) - Licensed Texas brokerage Spirit Real Estate Group, LLC, TREC #562021 - Free to renters Communities pay the brokerage. Your rent is the same either way. - Prices pulled every morning Every card shows the date and time it was pulled - Score can't be bought Commission rates never affect score, sort, placement, or picks ## What is net effective rent? Net effective rent is base rent minus the free rent from a special, spread evenly across the lease. It answers one question for you: on average, what does this apartment cost per month after the concession? With Austin apartment specials [/apartment-specials/ →](/apartment-specials/) averaging 10.8 weeks free on our board (median, Oct 25, 2026), net effective is often hundreds of dollars below the advertised base rent, which is why it’s the first number on every card. ![Formula graphic: base times months minus free rent, divided by months](/images/content/formula-graphic-base-times-months-minus-free-rent-.webp) ## The formula **Net effective = (base rent × lease months − free rent) ÷ lease months** For specials quoted in weeks: **Free rent = base rent × 12 ÷ 52 × weeks free** The 12 ÷ 52 converts monthly rent to weekly rent. A month is about 4.33 weeks, so dividing by 4 would overstate the value of each free week. ## Worked example from the board > **Illustration, values as of Oct 25, 2026; live page uses the feed** > > Citizen House Decker, Far East Austin: $1,172 base rent, “up to 10 weeks free” on a 12-month lease. ![Worked example: $1,172 base, 10 weeks free, 12 months, equals $947](/images/content/worked-example-card-1172-dollars-base-10-weeks-fre.webp) | Step | Math | Result | | --- | --- | --- | | Weekly rent | $1,172 × 12 ÷ 52 | $270.46 | | Free rent | $270.46 × 10 | $2,704.62 | | Total lease rent | $1,172 × 12 − $2,704.62 | $11,359.38 | | Net effective | $11,359.38 ÷ 12 | $947 | What it means for you: the special makes this a $947-a-month apartment in year one, $225 below base. But your renewal will start from the $1,172 base, not the $947. ## Net effective vs. true monthly Net effective is rent only. True monthly is what you’ll actually budget: **True monthly = net effective + required fees + electric estimate + water charge + parking** At Citizen House Decker, required fees of $112.50 (Greystar calculator) bring the monthly to $1,059 before electric and parking. Across 12 board buildings, required fees ran $78-$228 a month (median $120.50). Our guide to required monthly fees [/guides/required-monthly-fees-new-apartments/ →](/guides/required-monthly-fees-new-apartments/) explains each one. ## What net effective leaves out Three things net effective doesn’t show: 1. **Cash timing.** An upfront special means you pay $0 for the first weeks, then full base. A prorated special credits you every month. Same net effective, different cash flow and payback risk. See upfront vs. prorated concessions [/guides/upfront-vs-prorated-concessions/ →](/guides/upfront-vs-prorated-concessions/) . 2. **Gift cards.** We keep gift cards out of net effective. They don’t change what the lease says you owe each month, so counting them makes a special look deeper than the lease allows. 3. **Year two.** Renewals price from base rent. At the board’s 10.8-week median on 12 months, year two is about 26% higher at the same base. ## How lease length changes the number The same weeks free spread over more months lowers the discount per month: | Base rent $1,500, 8 weeks free | 12 months | 15 months | 18 months | | --- | --- | --- | --- | | Free rent | $2,769 | $2,769 | $2,769 | | Net effective | $1,269 | $1,315 | $1,346 | | Discount off base | 15.4% | 12.3% | 10.3% | A longer lease can still win if it comes with more weeks free. The 12 vs. 15 month lease [/guides/12-vs-15-month-lease/ →](/guides/12-vs-15-month-lease/) guide shows how to compare them on a 24-month basis. ## “Up to” specials “Up to 10 weeks free” often applies to select floor plans, select move-in dates, or a minimum lease term. The net effective for your unit may be lower or higher than the headline suggests. We confirm which special applies to which unit before you tour. ## Is net effective rent used for approval? Usually not. Most buildings test income at about 3x base rent. A few test against rent after the special. On a deep special that difference can decide whether you qualify; see income requirements [/guides/income-requirements-new-apartments/ →](/guides/income-requirements-new-apartments/) . ## Run it yourself The Special Decoder on the Specials page and our net effective rent calculator on the tools page [/tools/ →](/tools/) use this exact formula, with year two shown beside the result. Or send us the specials you’re weighing, and we’ll decode each one with fees and year two, then show you what happens in year two [/guides/year-two-rent-after-concession/ →](/guides/year-two-rent-after-concession/) before you sign. Learn more about Specials Every new-build special we confirmed this week, turned into the monthly number you'll pay and the year-two rent that follows. Open Specials [/apartment-specials/ →](/apartment-specials/) Why it goes wrong ## Why the advertised special isn't what you'll pay Problem 1 ### 'Up to' means select units An 'up to 10 weeks free' special often applies to a few floor plans or a minimum lease term. We confirm which unit gets which special before you tour. Problem 2 ### Formats aren't equal Upfront weeks, a prorated credit, and a gift card can carry the same headline. They differ on move-in cash, payback exposure, and whether net effective changes at all. Problem 3 ### The renewal resets At the board median of 10.8 weeks on 12 months, year two jumps about 26% at the same base (Oct 25, 2026). The special ends; the base rent stays. So we decode every special to net effective and year two, and get the terms noted in writing before you sign. Straight answers ## Questions about this topic Direct answer first, then the source and date. If your question isn't here, ask us on the form or by text. ### Is net effective rent what I pay each month? Not always. With an upfront special you pay $0 or a reduced amount for the first weeks, then full base rent. Net effective is the average across the lease. With a prorated special, your monthly payment is close to net effective. ### Does net effective include fees? No. Net effective covers rent only. True monthly adds required fees, an electric estimate, the water charge, and parking. ### Why do you use 12 ÷ 52 for weekly rent? A month is about 4.33 weeks, not 4. Weekly rent = base × 12 ÷ 52. Dividing by 4 instead overstates the value of weeks free. ### Can you guarantee a price or approval? No. The community sets rent; we confirm the special in writing. Keep reading ## More guides on this topic ![Renewal offer letter on a kitchen island with a calendar nearby](/images/featured/renewal-offer-letter-on-a-kitchen-island-in-a-sunl.webp) ### Year-Two Rent After a Concession: How the Renewal Jump Works Renewals price from base rent. 10.8 weeks free on 12 months means about +26% at the same base. How to see year two at 0% and +3% before you sign. [Year-Two Rent After a Concession: How the Renewal Jump Works →](/guides/year-two-rent-after-concession/) ![Wall calendar and lease pages in a bright new apartment kitchen](/images/featured/wall-calendar-and-lease-pages-in-a-bright-new-apar.webp) ### 12-Month vs. 15-Month Lease on a New-Build Special More weeks free on a longer lease can cost more or less. Compare net effective, renewal month timing, and 24-month totals before you choose. [12-Month vs. 15-Month Lease on a New-Build Special →](/guides/12-vs-15-month-lease/) The 60-second form ## Tell us what you need. We make the calls. You don't have time to call 20 leasing offices. We do, and confirm the unit, the special, and the written fee sheet the same day during hours. 1. 1 Same day We call or text during hours with a shortlist plan. 2. 2 In writing Unit, special, end date, and fee sheet confirmed before you tour. 3. 3 Year two shown Every pick shows year two at 0% and +3%, plus a 24-month total. Prefer to talk? Call or text 512-000-000 [tel:+1512000000 →](tel:+1512000000) , Mon-Fri 8 AM-8 PM · Sat 9 AM-6 PM · Sun 12-5 PM. Free, same day during hours ## Get my shortlist Step 1 of 3 ### Thanks, we have your details. We'll call or text the same day during hours with your shortlist plan. Related pages ## Related board views Board view ### Specials Specials confirmed within the last 7 days, each decoded to net effective and year two, with base rent shown beside every discount. Open Specials→ [/apartment-specials/ →](/apartment-specials/) Board view ### New Build Board Every in-scope community on one map, with base rent, the special, net effective, true monthly, and year two pulled every morning. Open New Build Board→ [/new-construction-apartments/ →](/new-construction-apartments/) Board view ### Lease-Ups Buildings already open and filling, sorted by stage and fill estimate, with what's finished and what the special does to your monthly cost. Open Lease-Ups→ [/lease-up-apartments/ →](/lease-up-apartments/) ![](/images/misc/dusk-view-of-new-limestone-and-glass-apartment-tow.webp) Free to you, and your rent is the same either way ## You don't have time to call 20 leasing offices. We do. Send us your move date and all-in budget. We confirm the unit, the special, and the written fee sheet the same day during hours, then show you year two before you tour. Get my shortlist → [/contact/ →](/contact/) See the New Build Board [/new-construction-apartments/ →](/new-construction-apartments/) Call or text 512-000-000 [tel:+1512000000 →](tel:+1512000000) We don't guarantee pricing or approval. The community sets both, and we confirm them before you sign.