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Thrift Savings Plan (TSP) Growth Calculator

TSP Future Value

$273,486

Contributions: $126,000 · Growth: $147,486

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We're working on a comprehensive educational guide for the Thrift Savings Plan (TSP) Growth Calculator in your language. The content below is shown in English.

O que é Thrift Savings Plan (TSP) Growth Calculator?

The Thrift Savings Plan (TSP) Growth and Projection Calculator helps military service members and federal civilian employees project the future value of their TSP retirement accounts based on contribution rates, pay grade progression, investment fund allocation, and assumed market returns. The TSP is the federal government's defined contribution retirement plan — equivalent to a 401(k) for private sector workers. It offers six core investment funds: the G Fund (Government Securities), F Fund (Fixed Income Index), C Fund (Common Stock Index tracking the S&P 500), S Fund (Small Cap Stock Index), I Fund (International Stock Index), and the L Funds (Lifecycle/Target Date funds). TSP is a core component of military retirement under the Blended Retirement System (BRS), where DoD contributes 1% automatically and matches up to 4% of basic pay. For federal civilians under FERS, the government contributes 1% automatically and matches up to 4% for a total possible 5% government contribution. The TSP's key advantages include extremely low expense ratios (0.057% in 2023 — far below most mutual funds and 401(k)s), broad market diversification, and tax-deferred (Traditional) or tax-free (Roth) growth options. The 2024 contribution limit is $23,000/year for employee contributions, plus a $7,500 catch-up for those 50 and older. Service members in combat zones can contribute up to the total annual additions limit ($69,000 in 2024). This calculator projects your TSP balance at any future date based on your current balance, contribution rate, investment allocation, and realistic market return assumptions.

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Fórmula

f(x)FV = PV × (1+r)^n + PMT × [((1+r)^n − 1) / r]; where PV = current balance, PMT = monthly contribution, r = monthly return rate, n = months; With DoD Matching: PMT = Employee Contribution + DoD Match (up to 5% of basic pay)

Legenda de variáveis

SímboloNomeUnidadeDescrição
Employee ContributionYour own TSPYour own TSP contribution — up to $23,000/year (2024) for employee deferrals
DoD/Government MatchUp to 5%Up to 5% of basic pay (1% auto + 4% match under BRS/FERS)
G Fund ReturnGovernment SecuritiesGovernment Securities — safest fund, return tied to long-term Treasury rates; ~2-4%/year historically
C Fund ReturnS&P 500 indexS&P 500 index — long-term average ~10%/year nominal, ~7% inflation-adjusted
L FundTargetTarget-date lifecycle funds that automatically shift from stocks to bonds as target date approaches
Expense RatioTSP expense ratio:TSP expense ratio: 0.057% in 2023 — among the lowest of any retirement plan

Como Thrift Savings Plan (TSP) Growth Calculator

  1. 1Step 1: Enter your current TSP balance.
  2. 2Step 2: Enter your monthly basic pay and your TSP contribution percentage.
  3. 3Step 3: Enter your current DoD or government match (up to 5% of basic pay under BRS).
  4. 4Step 4: Select your investment fund allocation (C, S, I, F, G, or L funds).
  5. 5Step 5: Enter your expected annual return based on fund allocation.
  6. 6Step 6: Enter the number of years until retirement.
  7. 7Step 7: The calculator uses compound growth formula to project your final TSP balance.
  8. 8Step 8: Compare results across conservative (5%), moderate (7%), and optimistic (9%) return scenarios.

Exemplos resolvidos

Exemplo 1E-5 contributing 5% with full BRS match, 15 years
Dado:Basic pay: $3,200/month; 5% contribution = $160/month; DoD match = $160/month; Total = $320/month; Current balance $10,000; 7% return; 15 years
Resultado:Projected TSP balance: approximately $120,000

Contributing 5% to capture full DoD match, investing primarily in C/S funds at 7% annual return, grows from $10,000 to about $120,000 over 15 years. The DoD match doubles the effective monthly contribution.

Exemplo 2O-3 at 10 years, aggressive allocation
Dado:Balance: $60,000; Contribution: $1,200/month; 9% return; 10 more years to retirement
Resultado:Projected balance: approximately $430,000

A mid-career officer with a substantial existing balance and aggressive contribution rate (maximum) in a stock-heavy allocation can accumulate significant TSP wealth by 20 years.

Exemplo 3Combat zone maximum contribution
Dado:Deployed to combat zone; Maximum contributions: $69,000/year ($5,750/month); 7% return; 1 year
Resultado:Additional TSP value: ~$5,900 in growth on top of $69,000 contributed

Service members in combat zones can contribute up to the total annual additions limit — much more than the standard $23,000 employee limit. Tax-free combat pay can be contributed to Roth TSP for completely tax-free growth and withdrawal.

Exemplo 4L Fund vs C Fund over 20 years
Dado:Initial balance: $0; Monthly contribution: $500; L2045 Fund (est. 7% return) vs C Fund (est. 9% return); 20 years
Resultado:L Fund: ~$311,000; C Fund: ~$375,000 — C Fund advantage: ~$64,000

The higher expected return of an all-equity C Fund allocation produces significantly more wealth over a long career than a blended lifecycle fund. Younger investors with long time horizons often benefit from higher equity allocations.

Exemplo 5Roth TSP vs Traditional TSP
Dado:Contribution: $500/month Traditional TSP; effective tax rate at withdrawal: 22%; vs $500/month Roth TSP; 20 years; 7% return
Resultado:Traditional TSP balance: $311,000; After-tax Traditional: $242,580; Roth TSP: $311,000 (fully tax-free)

Roth TSP contributions are after-tax but grow and withdraw completely tax-free. At a 22% future tax rate, Roth TSP outperforms Traditional TSP by $68,420 in after-tax value over 20 years on the same contribution amount.

Aplicações práticas

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Projecting TSP balance at military retirement, representing an important application area for the Tsp Growth Calc in professional and analytical contexts where accurate tsp growth calculations directly support informed decision-making, strategic planning, and performance optimization

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Maximizing TSP contributions during combat zone deployment, representing an important application area for the Tsp Growth Calc in professional and analytical contexts where accurate tsp growth calculations directly support informed decision-making, strategic planning, and performance optimization

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Comparing Roth vs Traditional TSP strategy, representing an important application area for the Tsp Growth Calc in professional and analytical contexts where accurate tsp growth calculations directly support informed decision-making, strategic planning, and performance optimization

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Evaluating TSP fund allocation for long-term growth, representing an important application area for the Tsp Growth Calc in professional and analytical contexts where accurate tsp growth calculations directly support informed decision-making, strategic planning, and performance optimization

Casos especiais

Service members in combat zones who receive tax-free combat pay can contribute

Service members in combat zones who receive tax-free combat pay can contribute that pay to Roth TSP — the contributions are already tax-free, and growth and qualified withdrawals are also tax-free. This is a uniquely powerful wealth-building opportunity. The mutual fund window allows TSP participants to access a broader range of mutual funds beyond the core six, for a fee, if they want additional investment options.

In time-sensitive tsp growth applications of the Tsp Growth Calc, temporal

In time-sensitive tsp growth applications of the Tsp Growth Calc, temporal context significantly affects input validity. Values measured at different time points may not be directly comparable, and historical tsp growth data may not accurately predict future conditions. Professional tsp growth users should ensure all inputs correspond to the same reference period and consider how changing conditions might affect calculated result reliability over time. Seasonal variations, market cycles, and trending tsp growth factors may all influence appropriate input selection.

When using the Tsp Growth Calc for comparative tsp growth analysis across

When using the Tsp Growth Calc for comparative tsp growth analysis across scenarios, consistent input measurement methodology is essential. Variations in how tsp growth inputs are measured, estimated, or rounded introduce systematic biases compounding through the calculation. For meaningful tsp growth comparisons, establish standardized measurement protocols, document assumptions, and consider whether result differences reflect genuine variations or measurement artifacts. Cross-validation against independent data sources strengthens confidence in comparative findings.

Reference Table

TSP FundAsset Type10-Year Avg Return (approx)Risk Level
G FundGovernment Securities2.5%Very Low
F FundFixed Income Index (Bloomberg US Agg)1.5%Low
C FundS&P 500 Index12.5%Moderate-High
S FundSmall/Mid Cap Index (Dow Jones US Completion)9.5%High
I FundInternational Stock Index (MSCI EAFE)5.5%Moderate-High
L 2050Lifecycle — aggressive allocation9.0%Moderate-High

Perguntas frequentes

Q

What are the TSP investment funds and their risk levels?

A

G Fund (Government Securities) — lowest risk, lowest return; F Fund (Fixed Income Index) — low risk, low-moderate return; C Fund (S&P 500 Index) — moderate-high risk, historically highest long-term return; S Fund (Small Cap Index) — higher risk, higher long-term potential; I Fund (International Index) — moderate-high risk, international diversification; L Funds — age-based lifecycle funds that automatically diversify.

Q

How does TSP Roth differ from TSP Traditional?

A

Traditional TSP contributions are pre-tax — you reduce taxable income now and pay tax on withdrawals in retirement. Roth TSP contributions are after-tax — no immediate tax benefit, but qualified withdrawals (after 59½ and 5-year holding period) are completely tax-free. Combat zone pay contributed to Roth TSP is a unique opportunity — tax-free income going in, tax-free growth, tax-free out.

Q

What is the TSP contribution limit in 2024?

A

In 2024, the elective deferral limit (employee contribution) is $23,000/year. Those 50 and older can add a $7,500 catch-up contribution. Service members deployed to designated combat zones can contribute up to the annual additions limit — $69,000 in 2024 — though most or all of these contributions may need to come from special pays to exceed the standard limit.

Q

Can I take loans from my TSP?

A

Yes. TSP offers general purpose loans (for any reason) and primary residence loans. Loan amounts are generally between $1,000 and $50,000 (or 50% of vested balance). Loans must be repaid with interest. The interest rate is the G Fund rate. Unpaid loans at separation are treated as taxable distributions with potential penalties.

Q

What happens to my TSP when I leave the military?

A

Your TSP account remains open after separation. You can leave funds in TSP, roll them over to an IRA or new employer plan, or take distributions (subject to taxes and penalties if before 59½). TSP's extremely low expense ratios make leaving funds there often advantageous. Required minimum distributions begin at age 73 for TSP accounts.

Q

How does TSP compare to a 401(k)?

A

TSP has lower expense ratios (0.057% in 2023) than virtually any 401(k) or IRA fund — saving 0.5–1% annually versus typical retail funds. TSP is more limited in fund choices (6 core funds vs. potentially hundreds in a 401(k)) but the available funds cover all major asset classes at minimal cost. For most federal and military savers, TSP is an exceptional vehicle.

Q

Is TSP income taxable in retirement?

A

Traditional TSP withdrawals are fully taxable as ordinary income. Roth TSP qualified withdrawals are completely tax-free. Most states exempt federal pension and TSP income from state income tax, but this varies by state. Taxable distributions from Traditional TSP count toward MAGI for Medicare IRMAA calculations. This is particularly important in the context of tsp growth calculator calculations, where accuracy directly impacts decision-making. Professionals across multiple industries rely on precise tsp growth calculator computations to validate assumptions, optimize processes, and ensure compliance with applicable standards. Understanding the underlying methodology helps users interpret results correctly and identify when additional analysis may be warranted.

Q

What is the TSP withdrawal age?

A

Penalty-free withdrawals from TSP begin at age 59½ (or age 55 if you separate from service in the year you turn 55 or later — the Rule of 55). Military retirees who retire under a defined benefit plan may qualify for the Rule of 55 exception earlier. Required Minimum Distributions begin at age 73 under SECURE 2.0.

Erros comuns a evitar

  • !Not contributing enough to capture full DoD matching under BRS — the most expensive mistake. Investing entirely in G Fund (lowest risk) when decades from retirement, sacrificing substantial long-term growth. Taking TSP loans without understanding the opportunity cost of reduced compound growth. Ignoring Roth TSP option for combat zone contributions.
  • !Using inconsistent units across input fields — mixing metric and imperial values without conversion leads to incorrect tsp growth calculator results.
  • !Rounding intermediate calculation steps too aggressively — carry full precision through the calculation and only round the final output to avoid compounding errors.
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Dica Pro

If you're early in your career, consider allocating the majority of your TSP to the C and S funds for maximum long-term growth potential. The TSP's expense ratios are so low (0.057%) that even without any other advantage, the cost savings over a career versus commercial funds can amount to tens of thousands of dollars in additional retirement wealth.

Você sabia?

The TSP's expense ratio of 0.057% (5.7 basis points) in 2023 is among the lowest of any investment fund in existence. By comparison, the average actively managed mutual fund charges 0.5–1.0% annually. Over a 30-year career, the expense ratio difference between TSP and the average retail mutual fund can compound to more than $50,000 on a $300,000 balance — purely from lower fees.

Regional Guides

🇺🇸 US
Uses US customary units and standards where applicable
🇬🇧 UK
May require conversion to metric units or British standards
🇪🇺 EU
Follows EU conventions and SI units where applicable
📖Dificuldade:Intermediário
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Reviewed June 2026
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