SDR Outsourcing ROI Math: Model This Before Hiring (2026)

Founder-stage SDR decisions get made on cost-per-seat because that is the number a vendor leads with. The decision deserves a fuller model. The five inputs below produce a single number (cost per qualified meeting, or, with two more inputs, cost per closed dollar) that is comparable across geographies and across the build-versus-buy choice. The cost bands and hidden drains in the second half of this piece are where the model usually breaks.

The 5-input ROI model

The model has five inputs. Three are operational (The Bridge Group's SDR benchmark research is the standard public anchor). Two come from the founder's own pipeline (close rate and average contract value).

1. Dials per SDR per day. Industry-typical productive dials for outbound SDR roles vary by ICP and dialer technology. Industry benchmark research places the band roughly between 50 and 150 productive dials per day depending on segment, list quality, and whether the team runs a power dialer or a manual workflow.
2. Contact rate. The percentage of dials that reach a decision-maker. This varies widely by vertical, list quality, and time of day, and typical SDR workflows see contact rates in single-digit-percent territory. Use your own dialer reporting here rather than any published band.
3. Conversion to qualified meeting. Of the contacts that reach a decision-maker, the percentage that convert to a qualified meeting on the founder's definition of qualification. This is where script quality, list quality, and SDR training intersect.
4. Meeting-to-close rate. The founder's own historical rate at which qualified meetings turn into closed-won deals. This is not an industry input. It comes from the founder's CRM.
5. Average contract value. The dollar value of a closed-won deal on the founder's typical contract. Annual contract value (ACV) for SaaS or equivalent for services.

Multiply forward: dials per day times working days per month times contact rate gives contacts per month. Contacts times conversion gives qualified meetings per month. Meetings times close rate gives closed deals per month. Closed deals times ACV gives gross revenue. Divide by loaded cost per SDR per month and the model returns ROI in months.

Loaded cost per SDR: in-house US vs nearshore Caribbean vs offshore Philippines

Cost-per-seat varies more by geography than by vendor. The bands below are Call Force Global estimates, not published benchmarks. They are anchored to BLS occupational wage data (SOC 41-9099 Sales Workers and adjacent classifications) for the US base, to rates we see quoted offshore and nearshore, and to a standard 30 to 40 percent benefits and overhead loading.

• US in-house SDR. Loaded annual cost roughly 90,000 to 130,000 US dollars on our estimate. BLS occupational mean wages plus benefits load plus management overhead. Higher end in major metros (San Francisco, New York), lower end in lower-cost markets.
• Caribbean nearshore SDR. Loaded annual cost roughly 40,000 to 65,000 US dollars on our estimate. Native English, full US Eastern overlap, and a wage floor anchored to the local labor market. CFG's fronter-only model sits in this band, and the broader definition of a nearshore outsourcing company covers how that wage floor and time-zone overlap interact.
• Far-offshore Philippines voice. Loaded annual cost roughly 25,000 to 40,000 US dollars on our estimate. The lowest cost band, with the trade-off being inverted-circadian shifts for US Eastern coverage, ESL delivery, and the post-September-2024 FCC disclosure overhead in regulated verticals.

These are bands, not point estimates. Any specific program varies with SDR seniority, vertical complexity, manager depth, and contract terms. The point is the order of magnitude: in-house roughly 2x nearshore, nearshore roughly 1.5x far-offshore.

Breakeven math: when nearshore SDR pays back month 1 vs month 6 vs not at all

Three scenarios cover most founder decisions. The numbers below use industry-typical ranges, not CFG cohort data.

Scenario A: month-one payback (high ACV, mature pipeline)

An SDR program with average contract value in the six figures, meeting-to-close at the founder's historical mid-range, and a list that has yielded close-won deals before. One closed deal in month one covers multiple months of SDR cost. Even modest meeting volume (say four to six qualified meetings per SDR per month) returns positive ROI by the end of month one. Nearshore versus far-offshore matters at the margin; both can work; in-house US is justifiable when in-market accent fit is load-bearing.

Scenario B: month-six payback (mid-ACV, building pipeline)

Average contract value in the mid-five figures, meeting-to-close in the founder's known range, list quality acceptable but not proven. Closed deals show up in month three to four, ramp-time productivity assumptions hold (60 to 90 days to full productivity per The Bridge Group's SDR ramp research), and payback lands at month six. This is the modal SMB outbound program. Nearshore Caribbean is structurally the right shape: low enough cost to keep the breakeven inside two quarters, high enough quality to keep close rates intact.

Scenario C: never pays back

Low ACV (under 10,000 US dollars), unproven close rate (the founder has never closed a deal from this ICP), or list quality so weak that contact rates are an order of magnitude below benchmark. The model never returns positive ROI because the unit economics of SDR-led outbound do not work at low ACV without compensating volume. The right answer is not to make the SDR cheaper. The right answer is to fix the offer, the ICP, or the list, or to switch to a non-SDR motion.

Hidden ROI drains procurement misses

Five drains tend to be absent from the procurement deck. Add them and breakeven moves.

• Attrition replacement cost. Published attrition data is uneven by geography. US contact center attrition runs a 27 percent mean and a 21 percent median (ContactBabel, US Contact Center Decision-Makers' Guide, 2024 edition), and Philippine contact center attrition was 43 percent on 2023 data reported by CCAP in May 2025 (CCAP Attrition and Retention Survey, conducted by Willis Towers Watson). No comparable published series exists for the Caribbean or Latin America. On the cost side, SHRM puts cost per hire at a $4,683 average with a $1,244 median (2022 Talent Access Report, n=472) and $5,475 for nonexecutive roles (October 2025 Recruiting report, average). Training, equipment and lost ramp productivity sit on top of cost per hire, and the size of that add-on is a Call Force Global estimate rather than a published figure.
• Ramp time. The Bridge Group and adjacent SDR research place full-productivity ramp at 60 to 90 days. The cost of carrying an SDR at sub-productive output for the ramp window is real and tends to be absent from breakeven math.
• List waste. Poor data quality (mobile numbers labeled as office direct dials, contacts at companies that no longer exist, decision-makers no longer in role) eats dial capacity at the rate of the waste percentage. A 30 percent waste rate is a 30 percent productivity tax.
• Dialer and tooling cost. Power dialer, CRM seats, sales engagement platform, data enrichment, and call recording typically add up to 100 to 300 US dollars per seat per month. Often quoted separately or absorbed silently.
• Manager overhead. One floor lead per 8 to 12 SDRs. Industry-typical supervisor ratio for outbound voice is 1:10 in regulated verticals, looser in low-regulation segments. Manager cost loads onto SDR cost and tends to show up only at scale.

Add the five drains together and they often move the breakeven date by months. Founders modeling SDR ROI without them tend to discover the gap in month five and call it a vendor problem when it was a model problem.

When founders should not outsource SDR

Three cases. None of them are about cost.

• Early product-market fit testing. If the founder still needs to hear what the market is saying on the call, the call cannot be delegated. PMF testing is a discovery activity, not an outbound activity. SDR outsourcing belongs after PMF is confirmed.
• Pre-revenue. The ROI model requires a meeting-to-close rate from the founder's own pipeline. Pre-revenue means that input is fiction. The model cannot return useful output until at least 10 to 20 closed deals exist to anchor the conversion rate.
• Brand-critical accent fit. A narrow ICP where the buyer demonstrably reacts to a specific regional accent and any other accent flattens conversion. This is rare. Most regulated US voice is well served by native English from a Caribbean nearshore market. But where in-market accent fit is load-bearing, in-house US is the answer.

Outside those three cases, the ROI model is the decision tool. CFG runs fronter-only SDR rooms in Jamaica, Saint Lucia, Trinidad, Belize, and Colombia. Toronto HQ. The agent pre-qualifies; the warm transfer goes to the client's US licensed closer for regulated-product handling. The model above is the one we run with prospective clients in the 60-second CFG calculator. Pair the ROI math with the right operating-rhythm metrics by reviewing the KPIs for an outsourced contact center partner before contract signing.

Sources

1. US Bureau of Labor Statistics. Occupational Employment and Wage Statistics, SOC 41-9099 Sales Workers and adjacent classifications.
2. ContactBabel. US Contact Center Decision-Makers' Guide, 2024 edition, 189 US contact center managers. US attrition, 27 percent mean and 21 percent median.
3. Contact Center Association of the Philippines (CCAP). Attrition and Retention Survey, conducted by Willis Towers Watson across 145 member organizations. 43 percent on 2023 data, reported May 2025.
4. SHRM. 2022 Talent Access Report (n=472) and October 2025 Recruiting report. Cost per hire.
5. RAIN Group. Sales benchmark research (publicly available reports on outbound conversion and prospect engagement).
6. The Bridge Group. SDR Metrics and Compensation Report series.
7. Federal Communications Commission. Declaratory Ruling, CG Docket No. 02-278. September 2024.

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