This is a little long, but these are the some of the 27 fundamental beliefs of SDA's:
1. The Holy Scriptures:
The Holy Scriptures, Old and New Testaments, are the written Word of God, given by divine inspiration through holy men of God who spoke and wrote as they were moved by the Holy Spirit. In this Word, God has committed to man the knowledge necessary for salvation. The Holy Scriptures are the infallible revelation of His will. They are the standard of character, the test of experience, the authoritative revealer of doctrines, and the trustworthy record of God's acts in history. (2 Peter 1:20, 21; 2 Tim. 3:16, 17; Ps. 119:105; Prov. 30:5, 6; Isa. 8:20; John 17:17; 1 Thess. 2:13; Heb. 4:12.)
3. The Father:
God the eternal Father is the Creator, Source, Sustainer, and Sovereign of all creation. He is just and holy, merciful and gracious, slow to anger, and abounding in steadfast love and faithfulness. The qualities and powers exhibited in the Son and the Holy Spirit are also revelations of the Father. (Gen. 1:1; Rev. 4:11; 1 Cor. 15:28; John 3:16; 1 John 4:8; 1 Tim. 1:17; Ex. 34:6, 7; John 14:9.)
4. The Son:
God the eternal Son became incarnate in Jesus Christ. Through Him all things were created, the character of God is revealed, the salvation of humanity is accomplished, and the world is judged. Forever truly God, He became also truly man, Jesus the Christ. He was conceived of the Holy Spirit and born of the virgin Mary. He lived and experienced temptation as a human being, but perfectly exemplified the righteousness and love of God. By His miracles He manifested God's power and was attested as God's promised Messiah. He suffered and died voluntarily on the cross for our sins and in our place, was raised from the dead, and ascended to minister in the heavenly sanctuary in our behalf. He will come again in glory for the final deliverance of His people and the restoration of all things. (John 1:1-3, 14; Col. 1:15-19; John 10:30; 14:9; Rom. 6:23; 2 Cor. 5:17-19; John 5:22; Luke 1:35; Phil. 2:5-11; Heb. 2:9-18; 1 Cor. 15:3, 4; Heb. 8:1, 2; John 14:1-3.)
5. The Holy Spirit:
God the eternal Spirit was active with the Father and the Son in Creation, incarnation, and redemption. He inspired the writers of Scripture. He filled Christ's life with power. He draws and convicts human beings; and those who respond He renews and transforms into the image of God. Sent by the Father and the Son to be always with His children, He extends spiritual gifts to the church, empowers it to bear witness to Christ, and in harmony with the Scriptures leads it into all truth. (Gen. 1:1, 2; Luke 1:35; 4:18; Acts 10:38; 2 Peter 1:21; 2 Cor. 3:18; Eph. 4:11, 12; Acts 1:8; John 14:16-18, 26; 15:26, 27; 16:7-13.)
8. The Great Controversy:
All humanity is now involved in a great controversy between Christ and Satan regarding the character of God, His law, and His sovereignty over the universe. This conflict originated in heaven when a created being, endowed with freedom of choice, in self-exaltation became Satan, God's adversary, and led into rebellion a portion of the angels. He introduced the spirit of rebellion into this world when he led Adam and Eve into sin. This human sin resulted in the distortion of the image of God in humanity, the disordering of the created world, and its eventual devastation at the time of the worldwide flood. Observed by the whole creation, this world became the arena of the universal conflict, out of which the God of love will ultimately be vindicated. To assist His people in this controversy, Christ sends the Holy Spirit and the loyal angels to guide, protect, and sustain them in the way of salvation. (Rev. 12:4-9; Isa. 14:12-14; Eze. 28:12-18; Gen. 3; Rom. 1:19-32; 5:12-21; 8:19-22; Gen. 6-8; 2 Peter 3:6; 1 Cor. 4:9; Heb. 1:14.)
9. The Life, Death, and Resurrection of Christ:
In Christ's life of perfect obedience to God's will, His suffering, death, and resurrection, God provided the only means of atonement for human sin, so that those who by faith accept this atonement may have eternal life, and the whole creation may better understand the infinite and holy love of the Creator. This perfect atonement vindicates the righteousness of God's law and the graciousness of His character; for it both condemns our sin and provides for our forgiveness. The death of Christ is substitutionary and expiatory, reconciling and transforming. The resurrection of Christ proclaims God's triumph over the forces of evil, and for those who accept the atonement assures their final victory over sin and death. It declares the Lordship of Jesus Christ, before whom every knee in heaven and on earth will bow. (John 3:16; Isa. 53; 1 Peter 2:21, 22; 1 Cor. 15:3, 4, 20-22; 2 Cor. 5:14, 15, 19-21; Rom. 1:4; 3:25; 4:25; 8:3, 4; 1 John 2:2; 4:10; Col. 2:15; Phil. 2:6-11.)
10. The Experience of Salvation:
In infinite love and mercy God made Christ, who knew no sin, to be sin for us, so that in Him we might be made the righteousness of God. Led by the Holy Spirit we sense our need, acknowledge our sinfulness, repent of our transgressions, and exercise faith in Jesus as Lord and Christ, as Substitute and Example. This faith which receives salvation comes through the divine power of the Word and is the gift of God's grace. Through Christ we are justified, adopted as God's sons and daughters, and delivered from the lordship of sin. Through the Spirit we are born again and sanctified; the Spirit renews our minds, writes God's law of love in our hearts, and we are given the power to live a holy life. Abiding in Him we become partakers of the divine nature and have the assurance of salvation now and in the judgment. (2 Cor. 5:17-21; John 3:16; Gal. 1:4; 4:4-7; Titus 3:3-7; John 16:8; Gal. 3:13, 14; 1 Peter 2:21, 22; Rom. 10:17; Luke 17:5; Mark 9:23, 24; Eph. 2:5-10; Rom. 3:21-26; Col. 1:13, 14; Rom. 8:14-17; Gal. 3:26; John 3:3-8; 1 Peter 1:23; Rom. 12:2; Heb. 8:7-12; Eze. 36:25-27; 2 Peter 1:3, 4; Rom. 8:1-4; 5:6-10.)
16. Spiritual Gifts and Ministries:
God bestows upon all members of His church in every age spiritual gifts which each member is to employ in loving ministry for the common good of the church and of humanity. Given by the agency of the Holy Spirit, who apportions to each member as He wills, the gifts provide all abilities and ministries needed by the church to fulfill its divinely ordained functions. According to the Scriptures, these gifts include such ministries as faith, healing, prophecy, proclamation, teaching, administration, reconciliation, compassion, and self-sacrificing service and charity for the help and encouragement of people. Some members are called of God and endowed by the Spirit for functions recognized by the church in pastoral, evangelistic, apostolic, and teaching ministries particularly needed to equip the members for service, to build up the church to spiritual maturity, and to foster unity of the faith and knowledge of God. When members employ these spiritual gifts as faithful stewards of God's varied grace, the church is protected from the destructive influence of false doctrine, grows with a growth that is from God, and is built up in faith and love. (Rom. 12:4-8; 1 Cor. 12:9-11, 27, 28; Eph. 4:8, 11-16; Acts 6:1-7; 1 Tim. 3:1-13; 1 Peter 4:10, 11.)
17. The Gift of Prophecy:
One of the gifts of the Holy Spirit is prophecy. This gift is an identifying mark of the remnant church and was manifested in the ministry of Ellen. G. White . As the Lord's messenger, her writings are a continuing and authoritative source of truth which provide for the church comfort, guidance, instruction, and correction. They also make clear that the Bible is the standard by which all teaching and experience must be tested. (Joel 2:28, 29; Acts 2:14-21; Heb. 1:1-3; Rev. 12:17; 19:10.)
18. The Law of God:
The great principles of God's law are embodied in the Ten Commandments and exemplified in the life of Christ. They express God's love, will, and purposes concerning human conduct and relationships and are binding upon all people in every age. These precepts are the basis of God's covenant with His people and the standard in God's judgment. Through the agency of the Holy Spirit they point out sin and awaken a sense of need for a Saviour. Salvation is all of grace and not of works, but its fruitage is obedience to the Commandments. This obedience develops Christian character and results in a sense of well-being. It is an evidence of our love for the Lord and our concern for our fellow men. The obedience of faith demonstrates the power of Christ to transform lives, and therefore strengthens Christian witness. (Ex. 20:1-17; Ps. 40:7, 8; Matt. 22:36-40; Deut. 28:1-14; Matt. 5:17-20; Heb. 8:8-10; John 15:7-10; Eph. 2:8-10; 1 John 5:3; Rom. 8:3, 4; Ps. 19:7-14.)
19. The Sabbath:
The beneficent Creator, after the six days of Creation, rested on the seventh day and instituted the Sabbath for all people as a memorial of Creation. The fourth commandment of God's unchangeable law requires the observance of this seventh-day Sabbath as the day of rest, worship, and ministry in harmony with the teaching and practice of Jesus, the Lord of the Sabbath. The Sabbath is a day of delightful communion with God and one another. It is a symbol of our redemption in Christ, a sign of our sanctification, a token of our allegiance, and a foretaste of our eternal future in God's kingdom. The Sabbath is God's perpetual sign of His eternal covenant between Him and His people. Joyful observance of this holy time from evening to evening, sunset to sunset, is a celebration of God's creative and redemptive acts. (Gen. 2:1-3; Ex. 20:8-11; Luke 4:16; Isa. 56:5, 6; 58:13, 14; Matt. 12:1-12; Ex. 31:13-17; Eze. 20:12, 20; Deut. 5:12-15; Heb. 4:1-11; Lev. 23:32; Mark 1:32.)
23. Christ's Ministry in the Heavenly Sanctuary:
There is a sanctuary in heaven, the true tabernacle which the Lord set up and not man. In it Christ ministers on our behalf, making available to believers the benefits of His atoning sacrifice offered once for all on the cross. He was inaugurated as our great High Priest and began His intercessory ministry at the time of His ascension. In 1844, at the end of the prophetic period of 2300 days, He entered the second and last phase of His atoning ministry. It is a work of investigative judgment which is part of the ultimate disposition of all sin, typified by the cleansing of the ancient Hebrew sanctuary on the Day of Atonement. In that typical service the sanctuary was cleansed with the blood of animal sacrifices, but the heavenly things are purified with the perfect sacrifice of the blood of Jesus. The investigative judgment reveals to heavenly intelligences who among the dead are asleep in Christ and therefore, in Him, are deemed worthy to have part in the first resurrection. It also makes manifest who among the living are abiding in Christ, keeping the commandments of God and the faith of Jesus, and in Him, therefore, are ready for translation into His everlasting kingdom. This judgment vindicates the justice of God in saving those who believe in Jesus. It declares that those who have remained loyal to God shall receive the kingdom. The completion of this ministry of Christ will mark the close of human probation before the Second Advent. (Heb. 8:1-5; 4:14-16; 9:11-28; 10:19-22; 1:3; 2:16, 17; Dan. 7:9-27; 8:13, 14; 9:24-27; Num. 14:34; Eze. 4:6; Lev. 16; Rev. 14:6, 7; 20:12; 14:12; 22:12.)
24. The Second Coming of Christ:
The second coming of Christ is the blessed hope of the church, the grand climax of the gospel. The Saviour's coming will be literal, personal, visible, and worldwide. When He returns, the righteous dead will be resurrected, and together with the righteous living will be glorified and taken to heaven, but the unrighteous will die. The almost complete fulfillment of most lines of prophecy, together with the present condition of the world, indicates that Christ's coming is imminent. The time of that event has not been revealed, and we are therefore exhorted to be ready at all times. (Titus 2:13; Heb. 9:28; John 14:1-3; Acts 1:9-11; Matt. 24:14; Rev. 1:7; Matt. 24:43, 44; 1 Thess. 4:13-18; 1 Cor. 15:51-54; 2 Thess. 1:7-10; 2:8; Rev. 14:14-20; 19:11-21; Matt. 24; Mark 13; Luke 21; 2 Tim. 3:1-5; 1 Thess. 5:1-6.)
25. Death and Resurrection:
The wages of sin is death. But God, who alone is immortal, will grant eternal life to His redeemed. Until that day death is an unconscious state for all people. When Christ, who is our life, appears, the resurrected righteous and the living righteous will be glorified and caught up to meet their Lord. The second resurrection, the resurrection of the unrighteous, will take place a thousand years later. (Rom. 6:23; 1 Tim. 6:15, 16; Eccl. 9:5, 6; Ps. 146:3, 4; John 11:11-14; Col. 3:4; 1 Cor. 15:51-54; 1 Thess. 4:13-17; John 5:28, 29; Rev. 20:1-10.)
26. The Millennium and the End of Sin:
The millennium is the thousand-year reign of Christ with His saints in heaven between the first and second resurrections. During this time the wicked dead will be judged; the earth will be utterly desolate, without living human inhabitants, but occupied by Satan and his angels. At its close Christ with His saints and the Holy City will descend from heaven to earth. The unrighteous dead will then be resurrected, and with Satan and his angels will surround the city; but fire from God will consume them and cleanse the earth. The universe will thus be freed of sin and sinners forever. (Rev. 20; 1 Cor. 6:2, 3; Jer. 4:23-26; Rev. 21:1-5; Mal. 4:1; Eze. 28:18, 19.)
27. The New Earth:
On the new earth, in which righteousness dwells, God will provide an eternal home for the redeemed and a perfect environment for everlasting life, love, joy, and learning in His presence. For here God Himself will dwell with His people, and suffering and death will have passed away. The great controversy will be ended, and sin will be no more. All things, animate and inanimate, will declare that God is love; and He shall reign forever. Amen. (2 Peter 3:13; Isa. 35; 65:17-25; Matt. 5:5; Rev. 21:1-7; 22:1-5; 11:15.)
These are only some... to to read them all you can go to
http://www.adventist.org/beliefs/fundamental/index.html.
I chose these because they are areas of debate I've seen between SDA's and others.